General description This Portable 4200mAh USB Fan is a versatile 3-in-1 device that can be used as a handheld fan, neck fan, or desk fan. Its foldable design and 90° tiltable feature allow for optimal airflow, making it ideal for summer use in various settings such as the office, bedroom, or while traveling. The fan also includes a scent compartment for adding your favorite perfume or essential oils, enhancing your cooling experience with soothing fragrances. Technical specifications Battery capacity: 4200 mAh Weight: 190 g (0.42 lb) Noise level: less than 15 dB Charging time: 3 hours via USB-C Operating time: up to 20 hours at the lowest speed, more than 10 hours at the highest speed Usage 5 adjustable speeds: gentle breeze, natural breeze, refreshing breeze, strong breeze, and air circulation mode LED display shows battery status and wind speed Ideal for home, office, travel, shopping, or camping Other information Includes a lanyard for easy attachment to bags or backpacks